Machine for producing shingle anchor nails and the like



June 3, 1947. p, MOQRE AL 2,421,573

MACHINE FOR PRODUCING SHINGLE ANCHOR NAILS AND THE LIKE Filed Aug. 11, 1944 C J 9. Q' S 1 7m EJ200719, 3, flU/l/d wad I Patented June 3, 1947 UNITED STATES PATENT OFFICE John P. Moore and Merlin .B. Dunlap, Clearwater,.Fla.

Application August: 11, l94'4g-serial Noi-549,032'

(Cl. MOP-92.).

3 Claims.

This invention relates to new and useful improvements in machines fo manufacturing wire nails and particularly nails that are usedas storm anchors. in connection with asbestos shinglesand such as is depicted in DesignPatent Noi. 2.7;138 issued June 1, 1897.

The principal object of the present invention is to provide a machine for the quick production of wire shingle anchors or nails from wire.

Another important object of the invention is to provide a machine for the production of nails such as storm anchors used in connection with asbestos shingle roofs which are especially suitable as a substitute for the usual copper storm anchors which because of their critical property during war time, are not available for commercial use.

Other objects and advantages of the invention shall become apparent to the reader of th following description.

In the drawing:

Figure 1 is a top plan view of the machine.

Figure 2 is a fragmentary vertical sectional view through the machine, showing a wire member in vertical position and about to be pressed down by the slide.

Figure 3 is a fragmentary vertical sectional view showing the wire element after it has been bent.

Figure 4 is a fragmentary top plan view showing the machine with the wire member disposed in the position as shown in Figure 3.

Figure 5 is a fragmentary top plan view showing the wire member in the act of being bent to form a ring.

Figure 6 is a fragmentary top plan view showing the wire element bent to form a ring.

Figure 7 is a perspective view of the resulting article.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes a block of substantially rectangular shape and having a slideway at its top side defined by a pair of upstanding shoulders 6, 6 horizontally grooved, as at I, to receive the lateral guide flanges 8 of a slide 9.

The block 5 has a vertically disposed bore in in which a core II is disposed for rotation and this core I I has a fine passageway l2 therethrough for the passage of wire elements l3 which are disposed through the passageway l2 by a suitable mechanical means (not shown).

The lower portion of the core II is enlarged, as at [4, and carries a gear l5 which meshes with a gear IS, the latter in turn being carried by 2 ashaft journaled througlra: bearing I'Ltheupper end of the .shaft being provided with a beveled pinion I8: meshingv with a beveled gear t9, the latter being located. on; a stubshaft 211 protecting fromariser-Zl onrthe bearirrg IT.

A pitman 22 has one endconnectedeccentrically, as at 23, to the beveled gear l9, while the opposite end is pivotally secured, as at 24, between ears rising from the slide 9.

The forward end of the slide 9 has a press roll 25 mounted therein.

As clearly shown in the drawings, the block 5 has an annular trough 26 circumscribing the upper end of the core 11 and leading from this trough and extending longitudinally in the top of the block 5 is a channel 21.

In the operation of the machine, it can be seen that a wire element I3 is first disposed into position as shown in Figure 2 by a suitable mechanical means (not shown) Power may be applied to the gear l6 and in the operation of the beveled gear IS, the pitman 22 will force the slide 9 to the right in Figure 2, thus pressing the uppe portion of the wire element l3 downwardly in a radial channe1 28 in the upper end of the core I l and down into the channel 21 in the top of the block 5. Thus the upper portion of the wire element I3 is bent at right angles to the remaining portion which still remains in the passageway I 2.

The next operation is a retraction of the slide 9 and subsequently the core H in rotating will draw the horizontal portion of the element l3 into the trough 26 and this operation will be continued until a ring has been formed in the trough 26 to the extent shown in Figure 6 of the drawings. When this ring forming step has been completed, the movement upwardly of the next wire blank will serve to displace the formednail from the core and the operation is repeated on the said next wire blank.

While the foregoing description sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and material may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described the invention, what we claim is:

1. A machine of the class described comprising a body having a guideway, a slide in the guideway, a rotary core in the body through which a wire blank is fed to the guideway, said slide movable transversely of the axis of the core and being operative to bend an upstanding portion of the blank downwardly, said core being rotatable to wind said bent down portion of the blank into a ring form, said body being provided with a gear mounted thereon, a pitman between the gear and the slide, a gear on the core, a drive shaft, and gears secured to the shaft and respectively engaged with said first and second gears to drive both.

2. A machine of the class described comprising a body having a longitudinally extending guideway, a slide mounted for forward and backward movement in said guideway, a core through which a wire blank is fed to said guideway mounted in said body for rotation about a vertical axis, and a gear train operatively connected to said slide and said core for causing forward and backward movement of said slide and rotation of said core, whereby forward movement of said slide efiects the bending of an upstanding portion of the blank downwardly and rotation of the core results in winding of the bent-down portion of the blank into a ring form.

3. A machine of the class described comprising a body having a longitudinally extending guideway, a slide mounted for forward and backward movement in said guideway, a core through which a wire blank is fed to said guideway mounted in said body for rotation about a vertical axis, a press roll on said slide for engaging the wire, and a gear train operatively connected to said slide and said core for causing forward and backward movement of said slide and rotation of said core, whereby forward movement of said slide aifects the bending of an upstanding portion of the blank downwardly and rotation of the core results in winding of the bent-down portion of the blank into a ring form.

JOHN P. MOORE. MERLIN B. DUNLAP.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,987,048 Brunst Jan. 8, 1935 793,123 Carroll June 27, 1905 615,749 Roulet et al. Dec. 13, 1898 2,067,521 Danziger Jan. 12, 1937 2,230,818 Stewart Feb. 4, 1941 2,293,506 Hoernle Aug. 18, 1942 

